[Membership 2] - PayPal Payment Logs

ms-paypal-log.php

<?php
/**
* Plugin Name: [Membership 2] - PayPal Payment Logs
* Plugin URI: https://premium.wpmudev.org/
* Description: Logs PayPal Payments
* Author: Panos Lyrakis @ WPMUDEV
* Author URI: https://premium.wpmudev.org/
* License: GPLv2 or later
*/
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}
if ( ! class_exists( 'WPMUDEV_MS_PayPal_Loger' ) ) {
    
    class WPMUDEV_MS_PayPal_Loger {
        private static $_instance = null;
        public static function get_instance() {
            if( is_null( self::$_instance ) ){
                self::$_instance = new WPMUDEV_MS_PayPal_Loger();
            }
            return self::$_instance;
            
        }
        private function __construct() {       
        	add_action( 'pre_get_posts', array( $this, 'handle' ), 1 );
        }

        public function handle( $wp_query ) {

        	//if ( empty( $wp_query->query_vars['paymentgateway'] ) ) {
			//	return;
			//}

            if ( ! isset( $wp_query->query_vars['pagename'] ) || strpos( $wp_query->query_vars['pagename'], 'ms-payment-return' ) === false ) {
                return;
            }

			$now = date( 'd M Y H:i:s' );
            $log_content = '';
			//$gateway = $wp_query->query_vars['paymentgateway'];
            $gateway = explode( '/', $wp_query->query_vars['pagename'] )[1];

			$transaction_type = '';
			$external_id = null;
			$invoice_id = null;

			// Backwards compatibility

			switch ( $gateway ) {
				case 'paypal_single': 	$gateway = 'paypalsingle'; break;
				case 'paypal_standard': $gateway = 'paypalstandard'; break;
				case 'paypal-single': 	$gateway = 'paypalsingle'; break;
				case 'paypal-standard': $gateway = 'paypalstandard'; break;
				case 'paypalsolo': 		$gateway = 'paypalsingle'; break; // M1
				case 'paypalexpress': 	$gateway = 'paypalstandard'; break; //M1
                case 'paypalstandar':   $gateway = 'paypalstandard'; break;
			}

			if ( ! empty( $_POST[ 'payment_status'] ) ) {
				$payment_status = strtolower( $_POST[ 'payment_status'] );
			}

			if ( ! empty( $_POST[ 'txn_type'] ) ) {
				$transaction_type = strtolower( $_POST[ 'txn_type'] );
			}

			if ( ! empty( $_POST['txn_id'] ) ) {
				$external_id = $_POST['txn_id'];
			}

			if ( ! empty( $_POST['invoice'] ) ) {
				$invoice_id 	= intval( $_POST['invoice'] );
			} elseif ( ! empty( $_POST['rp_invoice'] ) ) {
				$invoice_id 	= intval( $_POST['rp_invoice'] );
			}

			$log_content = "\n\n\n=======================\n\n\n{$now}\n\n";
            $log_content .= "invoice_id : {$invoice_id}\n";
            $log_content .= "external_id : {$external_id}\n\n";
            $log_content .= "transaction_type : {$transaction_type}\n\n";
            $log_content .= "payment_status : {$payment_status}\n\n";
            $log_content .= "data : " . print_r( $_POST, true );

            self::log( $log_content );
        }

        public static function log( $data, $log_file = null, $log_file_path = null ) {
        	$data = is_array( $data ) || is_object( $data ) ? print_r( $data, true ) : $data;
        	$log_file = is_null( $log_file ) ? 'ms-paypal.log' : $log_file;
        	$log_file_path = is_null( $log_file_path ) ? WP_CONTENT_DIR . DIRECTORY_SEPARATOR . 'mu-plugins' : $log_file_path;
        	$log_file = $log_file_path . DIRECTORY_SEPARATOR . $log_file;
        	$date = date( 'd-m-Y H:i:s' );
        	error_log( "\n\n[ {$date} ] \n{$data}", 3, $log_file );
        }


    }

    add_action( 'plugins_loaded', function(){
        $GLOBALS['WPMUDEV_MS_PayPal_Loger'] = WPMUDEV_MS_PayPal_Loger::get_instance();
    }, 10 );

}